S50 Cylinder Head with porting and polishing done by a Professional shop. S50 cams and trays- $1000 I know that it is high but this head flows beyond anything I have ever owned and it includes upgraded retainers, extensive porting and polishing a 3 angle valve job in the last 3K an S50 cams and trays all in great shape.

S50 Head (Ported and Polished) with cams and Trays
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